53939894 has 4 divisors (see below), whose sum is σ = 80909844. Its totient is φ = 26969946.

The previous prime is 53939869. The next prime is 53939911. The reversal of 53939894 is 49893935.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×53939894³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13484972 + ... + 13484975.

It is an arithmetic number, because the mean of its divisors is an integer number (20227461).

Almost surely, 2^53939894 is an apocalyptic number.

53939894 is a deficient number, since it is larger than the sum of its proper divisors (26969950).

53939894 is a wasteful number, since it uses less digits than its factorization.

53939894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26969949.

The product of its digits is 1049760, while the sum is 50.

The square root of 53939894 is about 7344.3783943912. The cubic root of 53939894 is about 377.8360243587.

The spelling of 53939894 in words is "fifty-three million, nine hundred thirty-nine thousand, eight hundred ninety-four".